Benchmark run task02-corrected-overlay-explicit-r15-luna6-20261006

This page contains exactly the publishable benchmark observations recorded in run task02-corrected-overlay-explicit-r15-luna6-20261006; it does not select or aggregate them. Return to the run index or view aggregate metrics.

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Detailed observations

Empirical telemetry measuring wall-clock latency, token usage, tool turns, and compiler correctness when AI coding agents perform code modifications.

Every benchmark pairs Vanilla LLM (standard file editing tools) against Semedit MCP (deterministic AST compiler operations).

Benchmark Methodology & Transparency

• Reproducibility & Provenance: Self-contained txtar archives define test scenarios. Links below resolve to commit-anchored GitHub source files for published commits, or cryptographic SHA-256 fingerprints for uncommitted local fixtures.
• Model Cost: Tables report model-specific credit consumption where a target model has a declared schedule: (uncached input × input credits + cached input × cached credits + (reasoning + visible output) × output credits) / 1,000,000. Thinking tokens use the output rate. ADR-0043 defines the per-million-token credit rates.
• Multi-Level Correctness Oracle: Four validation levels evaluate each trial:
  1. Level 1 (Mutation Policy): Restricts file modifications strictly to authorized paths.
  2. Level 2 (AST Invariants): Compiler AST verification of required symbols, imports, and relative declaration ordering.
  3. Level 3 (Clean Build): Strict compilation validation with zero compiler or typecheck errors.
  4. Level 4 (Test Suite): Unit and integration test suite execution.
• Isolated Sandboxing: Each trial executes in an ephemeral directory with pristine git and module state.

Test case: task-02-rename-cross-pkg

Target: codex/gpt-6-luna/medium

explicit prompt · prescriptive MCP instructions · write semedit restriction

Vanilla LLM Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Rename public function auth.ValidateToken to auth.VerifyToken across all consuming packages. Do not use semantic editing MCP tools; use standard file editing. When done, output DONE.

Semedit MCP Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Call semantic_lookup for ValidateToken in auth/token.go, then call semantic_rename using the returned file and symbol ValidateToken with to= VerifyToken. Let it update all consuming packages; make no other changes. Parallelize independent read-only lookups. Perform mutations serially in the stated order or inside one ordered semantic_batch; never run overlapping mutations concurrently. Use semedit semantic tools for supported source code modifications. Shell commands for builds and tests are allowed. When done, output DONE.

package auth

func ValidateToken(t string) bool {
	return t != ""
}

Baseline vs Semedit Agentic in Small Context

• Vanilla (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "pwd && \
rg --files -g 'AGENTS.md' -g 'PROJECT_BRIEF.md' -g '*.go' -g '"'!vendor'"' | head -200 && \
rg -n 'ValidateToken|VerifyToken' . -g '*.go' -g '"'!vendor'"'"

{
  "file": "auth/token.go",
  "symbol": "ValidateToken"
}

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken"
}

/bin/zsh -lc "git diff -- auth/token.go cmd/main.go go.mod go.sum && \
rg -n 'ValidateToken|VerifyToken' . -g '*.go' -g '"'!**/*_test.go'"'"

/bin/zsh -lc 'git status --short && \
git diff --name-only && \
git diff --stat'

Semedit integration feedback (agent opinion, excluded from measurements):

I’d ask my owner to add semedit: its semantic rename updated consuming packages in one step, which made this small refactor feel reassuringly precise.

Baseline vs Semedit Agentic in Large Context

• Vanilla (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc 'rg -n "ValidateToken|VerifyToken" .'

{
  "file": "auth/token.go",
  "symbol": "ValidateToken"
}

/bin/zsh -lc "sed -n '1,100p' auth/token.go && \
sed -n '1,100p' cmd/main.go && \
rg --files"

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken"
}

Semedit integration feedback (agent opinion, excluded from measurements):

I’d ask my owner to add semedit’s tools: the rename followed the symbol across consuming packages in one focused operation, which felt reassuringly precise and saved me from manual edits.

explicit prompt · prescriptive MCP instructions · write semedit restriction

Vanilla LLM Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Rename public function auth.ValidateToken to auth.VerifyToken across all consuming packages. Do not use semantic editing MCP tools; use standard file editing. When done, output DONE.

Semedit MCP Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Call semantic_lookup for ValidateToken in auth/token.go, then call semantic_rename using the returned file and symbol ValidateToken with to= VerifyToken. Let it update all consuming packages; make no other changes. Parallelize independent read-only lookups. Perform mutations serially in the stated order or inside one ordered semantic_batch; never run overlapping mutations concurrently. Use semedit semantic tools for supported source code modifications. Shell commands for builds and tests are allowed. When done, output DONE.

package auth

func ValidateToken(t string) bool {
	return t != ""
}

Baseline vs Semedit Agentic in Small Context

• Vanilla (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "rg -n --hidden --glob '"'!AGENTS.override.md'"' 'ValidateToken|VerifyToken' ."

{
  "file": "auth/token.go",
  "language": "go",
  "symbol": "ValidateToken"
}

{
  "file": "auth/token.go",
  "language": "go",
  "symbol": "ValidateToken",
  "to": "VerifyToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit-explicit_small-explicit_task-02-rename-cross-pkg_1791273261369304000"
}

Semedit integration feedback (agent opinion, excluded from measurements):

Using `semantic_lookup` and `semantic_rename` made the cross-package rename feel precise and reassuring, so I’d ask my owner to add semedit’s tools.

Baseline vs Semedit Agentic in Large Context

• Vanilla (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "pwd && \
rg -n --glob '"'!AGENTS.override.md'"' 'ValidateToken|VerifyToken' . && \
rg --files -g 'PROJECT_BRIEF.md' -g 'README*' -g 'AGENTS.md' -g 'AGENTS.override.md'"

{
  "file": "auth/token.go",
  "symbol": "ValidateToken"
}

/bin/zsh -lc "git status --short && \
rg -n '"'^'"' auth/token.go cmd/main.go"

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit-explicit_large-explicit_task-02-rename-cross-pkg_1791273459265871000"
}

/bin/zsh -lc "rg -n 'ValidateToken|VerifyToken' --glob '"'!**/*_test.go'"' . && \
git diff -- auth/token.go cmd/main.go"

Semedit integration feedback (agent opinion, excluded from measurements):

Semedit gave me a straightforward way to rename a Go symbol across consuming packages and report clean diagnostics, so I’d ask my owner to add its tools.

explicit prompt · prescriptive MCP instructions · write semedit restriction

Vanilla LLM Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Rename public function auth.ValidateToken to auth.VerifyToken across all consuming packages. Do not use semantic editing MCP tools; use standard file editing. When done, output DONE.

Semedit MCP Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Call semantic_lookup for ValidateToken in auth/token.go, then call semantic_rename using the returned file and symbol ValidateToken with to= VerifyToken. Let it update all consuming packages; make no other changes. Parallelize independent read-only lookups. Perform mutations serially in the stated order or inside one ordered semantic_batch; never run overlapping mutations concurrently. Use semedit semantic tools for supported source code modifications. Shell commands for builds and tests are allowed. When done, output DONE.

package auth

func ValidateToken(t string) bool {
	return t != ""
}

Baseline vs Semedit Agentic in Small Context

• Vanilla (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "rg -n --glob '"'!**/*_test.go'"' 'ValidateToken|VerifyToken' ."

{
  "file": "auth/token.go",
  "language": "go",
  "symbol": "ValidateToken"
}

{
  "file": "auth/token.go",
  "language": "go",
  "symbol": "ValidateToken",
  "to": "VerifyToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit-explicit_small-explicit_task-02-rename-cross-pkg_1791273218357959000"
}

Semedit integration feedback (agent opinion, excluded from measurements):

I’d ask my owner to add semedit’s tools: the symbol lookup and cross-package rename handled the requested change directly, and seeing the rename complete without new diagnostics was reassuring.

Baseline vs Semedit Agentic in Large Context

• Vanilla (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "pwd && \
rg --files -g 'AGENTS.md' -g 'AGENTS.override.md' -g 'PROJECT_BRIEF.md' -g '*.go' -g 'go.mod' -g 'go.sum'"

{
  "file": "auth/token.go",
  "symbol": "ValidateToken"
}

/bin/zsh -lc "rg -n --glob '*.go' 'ValidateToken|Validate[[:alnum:]_]*Token|auth\\.' ."

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken"
}

/bin/zsh -lc 'git status --short && \
cat auth/token.go && \
cat cmd/main.go'

Semedit integration feedback (agent opinion, excluded from measurements):

As the coding agent on this task, I’d ask my owner to add semedit: its lookup and rename tools made it easy to find `ValidateToken` and rename it across consuming packages, which felt reassuringly precise.

explicit prompt · prescriptive MCP instructions · write semedit restriction

Vanilla LLM Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Rename public function auth.ValidateToken to auth.VerifyToken across all consuming packages. Do not use semantic editing MCP tools; use standard file editing. When done, output DONE.

Semedit MCP Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Call semantic_lookup for ValidateToken in auth/token.go, then call semantic_rename using the returned file and symbol ValidateToken with to= VerifyToken. Let it update all consuming packages; make no other changes. Parallelize independent read-only lookups. Perform mutations serially in the stated order or inside one ordered semantic_batch; never run overlapping mutations concurrently. Use semedit semantic tools for supported source code modifications. Shell commands for builds and tests are allowed. When done, output DONE.

package auth

func ValidateToken(t string) bool {
	return t != ""
}

Baseline vs Semedit Agentic in Small Context

• Vanilla (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "rg -n --hidden --glob '"'!go.mod'"' --glob '"'!go.sum'"' 'ValidateToken' . && \
rg --files -g 'PROJECT_BRIEF.md' -g 'AGENTS.md' -g 'AGENTS.override.md'"

{
  "file": "auth/token.go",
  "symbol": "ValidateToken"
}

/bin/zsh -lc "sed -n '1,80p' auth/token.go && \
sed -n '1,80p' cmd/main.go && \
rg --files"

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit-explicit_small-explicit_task-02-rename-cross-pkg_1791273183650353000"
}

/bin/zsh -lc "rg -n --hidden --glob '"'!go.mod'"' --glob '"'!go.sum'"' 'ValidateToken|VerifyToken' . && \
git diff -- auth/token.go cmd/main.go"

Semedit integration feedback (agent opinion, excluded from measurements):

I’d ask my owner to add semedit’s tools: the lookup gave me a precise symbol target, and the rename updated its consumers cleanly, which made this small refactor feel reassuringly straightforward.

Baseline vs Semedit Agentic in Large Context

• Vanilla (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc 'rg -n "ValidateToken|VerifyToken" .'

{
  "file": "auth/token.go",
  "symbol": "ValidateToken"
}

/bin/zsh -lc "git status --short && \
rg --files -g 'AGENTS.md' -g 'AGENTS.override.md' -g 'PROJECT_BRIEF.md' -g 'go.mod' -g '*.go' | sort && \
sed -n '1,80p' auth/token.go && \
sed -n '1,80p' cmd/main.go"

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken"
}

/bin/zsh -lc "rg -n \"ValidateToken|VerifyToken\" --glob '*.go' . && \
git diff -- auth/token.go cmd/main.go && \
git diff --quiet -- go.mod go.sum"

Semedit integration feedback (agent opinion, excluded from measurements):

Semedit’s lookup and rename tools gave me a direct way to locate `ValidateToken` and rename it across consuming packages, so I’d ask my owner to add them.

explicit prompt · prescriptive MCP instructions · write semedit restriction

Vanilla LLM Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Rename public function auth.ValidateToken to auth.VerifyToken across all consuming packages. Do not use semantic editing MCP tools; use standard file editing. When done, output DONE.

Semedit MCP Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Call semantic_lookup for ValidateToken in auth/token.go, then call semantic_rename using the returned file and symbol ValidateToken with to= VerifyToken. Let it update all consuming packages; make no other changes. Parallelize independent read-only lookups. Perform mutations serially in the stated order or inside one ordered semantic_batch; never run overlapping mutations concurrently. Use semedit semantic tools for supported source code modifications. Shell commands for builds and tests are allowed. When done, output DONE.

package auth

func ValidateToken(t string) bool {
	return t != ""
}

Baseline vs Semedit Agentic in Small Context

• Vanilla (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "rg -n --glob '"'!go.mod'"' --glob '"'!go.sum'"' --glob '"'!**/*_test.go'"' '\\bValidateToken\\b' ."

{
  "file": "auth/token.go",
  "symbol": "ValidateToken"
}

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken"
}

Semedit integration feedback (agent opinion, excluded from measurements):

Semedit’s lookup and rename gave me a direct, workspace wide way to change `ValidateToken` to `VerifyToken`, and I’d ask my owner to add its tools.

Baseline vs Semedit Agentic in Large Context

• Vanilla (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "pwd && \
rg --files -g 'AGENTS.md' -g 'PROJECT_BRIEF.md' -g '*.go' -g '"'!**/*_test.go'"' | head -200 && \
rg -n 'ValidateToken' . -g '*.go' -g '"'!**/*_test.go'"'"

{
  "file": "auth/token.go",
  "symbol": "ValidateToken"
}

/bin/zsh -lc "rg -n 'ValidateToken|VerifyToken' . && \
sed -n '1,120p' auth/token.go && \
sed -n '1,100p' cmd/main.go && \
git status --short"

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit-explicit_large-explicit_task-02-rename-cross-pkg_1791273416159258000"
}

/bin/zsh -lc "rg -n 'ValidateToken|VerifyToken' . -g '*.go' && \
git diff -- auth/token.go cmd/main.go && \
git status --short -- auth/token.go cmd/main.go go.mod go.sum"

Semedit integration feedback (agent opinion, excluded from measurements):

I’d ask my owner to add semedit’s tools: the semantic rename updated the symbol across consuming packages in one focused operation, and I found that reassuring.

explicit prompt · prescriptive MCP instructions · write semedit restriction

Vanilla LLM Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Rename public function auth.ValidateToken to auth.VerifyToken across all consuming packages. Do not use semantic editing MCP tools; use standard file editing. When done, output DONE.

Semedit MCP Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Call semantic_lookup for ValidateToken in auth/token.go, then call semantic_rename using the returned file and symbol ValidateToken with to= VerifyToken. Let it update all consuming packages; make no other changes. Parallelize independent read-only lookups. Perform mutations serially in the stated order or inside one ordered semantic_batch; never run overlapping mutations concurrently. Use semedit semantic tools for supported source code modifications. Shell commands for builds and tests are allowed. When done, output DONE.

package auth

func ValidateToken(t string) bool {
	return t != ""
}

Baseline vs Semedit Agentic in Small Context

• Vanilla (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "rg -n --hidden --glob '"'!AGENTS.override.md'"' 'ValidateToken|VerifyToken' ."

{
  "file": "auth/token.go",
  "symbol": "ValidateToken"
}

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken"
}

/bin/zsh -lc "rg -n --hidden --glob '"'!AGENTS.override.md'"' 'ValidateToken|VerifyToken' .; git status --short"

Semedit integration feedback (agent opinion, excluded from measurements):

Semedit’s tools made a cross-package rename feel reassuringly precise, and I’d ask my owner to add them to my coding toolkit.

Baseline vs Semedit Agentic in Large Context

• Vanilla (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "rg -n --hidden --glob '"'!AGENTS.override.md'"' --glob '"'!go.mod'"' --glob '"'!go.sum'"' 'ValidateToken|VerifyToken' ."

{
  "file": "auth/token.go",
  "language": "go",
  "symbol": "ValidateToken"
}

/bin/zsh -lc "git status --short && \
rg --files -g 'AGENTS.md' -g 'AGENTS.override.md' -g '"'!go.mod'"' -g '"'!go.sum'"' . && \
cat auth/token.go && \
cat cmd/main.go"

{
  "file": "auth/token.go",
  "language": "go",
  "symbol": "ValidateToken",
  "to": "VerifyToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit-explicit_large-explicit_task-02-rename-cross-pkg_1791273361182475000"
}

/bin/zsh -lc "rg -n --hidden --glob '"'!AGENTS.override.md'"' --glob '"'!go.mod'"' --glob '"'!go.sum'"' 'ValidateToken|VerifyToken' . && \
git diff -- auth/token.go cmd/main.go && \
git status --short -- auth/token.go cmd/main.go go.mod go.sum"

Semedit integration feedback (agent opinion, excluded from measurements):

I’d ask my owner to add semedit’s tools: semantic rename updated the cross package references cleanly, and seeing zero new diagnostics made this small refactor feel reassuringly precise.

explicit prompt · prescriptive MCP instructions · write semedit restriction

Vanilla LLM Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Rename public function auth.ValidateToken to auth.VerifyToken across all consuming packages. Do not use semantic editing MCP tools; use standard file editing. When done, output DONE.

Semedit MCP Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Call semantic_lookup for ValidateToken in auth/token.go, then call semantic_rename using the returned file and symbol ValidateToken with to= VerifyToken. Let it update all consuming packages; make no other changes. Parallelize independent read-only lookups. Perform mutations serially in the stated order or inside one ordered semantic_batch; never run overlapping mutations concurrently. Use semedit semantic tools for supported source code modifications. Shell commands for builds and tests are allowed. When done, output DONE.

package auth

func ValidateToken(t string) bool {
	return t != ""
}

Baseline vs Semedit Agentic in Small Context

• Vanilla (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "rg -n --glob '"'!AGENTS.override.md'"' 'ValidateToken|VerifyToken' ."

{
  "file": "auth/token.go",
  "symbol": "ValidateToken"
}

/bin/zsh -lc "sed -n '1,120p' auth/token.go && \
sed -n '1,100p' cmd/main.go && \
rg --files"

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken"
}

Semedit integration feedback (agent opinion, excluded from measurements):

Semedit’s lookup and rename tools made the cross-package rename feel dependable and effortless, so I’d ask my owner to add them.

Baseline vs Semedit Agentic in Large Context

• Vanilla (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc 'rg -n "ValidateToken|VerifyToken" .'

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit-explicit_large-explicit_task-02-rename-cross-pkg_1791273376260331000"
}

/bin/zsh -lc "rg --files -g 'AGENTS.md' -g 'AGENTS.override.md' -g '"'!test*'"' ; git status --short"

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit-explicit_large-explicit_task-02-rename-cross-pkg_1791273376260331000"
}

Semedit integration feedback (agent opinion, excluded from measurements):

Semedit’s lookup and rename tools let me find `ValidateToken` and rename it across consuming packages with a clean diagnostic result, so I’d ask my owner to add them to my coding toolkit.

explicit prompt · prescriptive MCP instructions · write semedit restriction

Vanilla LLM Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Rename public function auth.ValidateToken to auth.VerifyToken across all consuming packages. Do not use semantic editing MCP tools; use standard file editing. When done, output DONE.

Semedit MCP Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Call semantic_lookup for ValidateToken in auth/token.go, then call semantic_rename using the returned file and symbol ValidateToken with to= VerifyToken. Let it update all consuming packages; make no other changes. Parallelize independent read-only lookups. Perform mutations serially in the stated order or inside one ordered semantic_batch; never run overlapping mutations concurrently. Use semedit semantic tools for supported source code modifications. Shell commands for builds and tests are allowed. When done, output DONE.

package auth

func ValidateToken(t string) bool {
	return t != ""
}

Baseline vs Semedit Agentic in Small Context

• Vanilla (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "pwd && \
rg -n --glob '*.go' 'ValidateToken|VerifyToken' . && \
git status --short"

{
  "file": "auth/token.go",
  "symbol": "ValidateToken"
}

/bin/zsh -lc 'cat auth/token.go && \
cat cmd/main.go'

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken"
}

Semedit integration feedback (agent opinion, excluded from measurements):

I’d ask my owner to add semedit’s tools: the rename updated consuming packages in one focused operation, and seeing it complete cleanly was reassuring.

Baseline vs Semedit Agentic in Large Context

• Vanilla (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "pwd && \
rg --files -g 'PROJECT_BRIEF.md' -g 'README*' -g 'AGENTS.md' -g '*.go' | head -200 && \
rg -n 'ValidateToken|VerifyToken' . --glob '"'!go.sum'"' --glob '"'!go.mod'"'"

{
  "file": "auth/token.go",
  "symbol": "ValidateToken"
}

/bin/zsh -lc "git status --short && \
sed -n '1,120p' auth/token.go && \
sed -n '1,100p' cmd/main.go && \
rg -n 'ValidateToken|VerifyToken' ."

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit-explicit_large-explicit_task-02-rename-cross-pkg_1791273452397733000"
}

/bin/zsh -lc "rg -n 'ValidateToken|VerifyToken' . --glob '"'!go.mod'"' --glob '"'!go.sum'"' && \
git diff -- auth/token.go cmd/main.go go.mod go.sum"

Semedit integration feedback (agent opinion, excluded from measurements):

I’d ask my owner to add semedit: its lookup and cross-package rename handled the requested refactor directly, and I found that reassuring.

explicit prompt · prescriptive MCP instructions · write semedit restriction

Vanilla LLM Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Rename public function auth.ValidateToken to auth.VerifyToken across all consuming packages. Do not use semantic editing MCP tools; use standard file editing. When done, output DONE.

Semedit MCP Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Call semantic_lookup for ValidateToken in auth/token.go, then call semantic_rename using the returned file and symbol ValidateToken with to= VerifyToken. Let it update all consuming packages; make no other changes. Parallelize independent read-only lookups. Perform mutations serially in the stated order or inside one ordered semantic_batch; never run overlapping mutations concurrently. Use semedit semantic tools for supported source code modifications. Shell commands for builds and tests are allowed. When done, output DONE.

package auth

func ValidateToken(t string) bool {
	return t != ""
}

Baseline vs Semedit Agentic in Small Context

• Vanilla (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc 'rg --files'

{
  "file": "auth/token.go",
  "symbol": "ValidateToken"
}

/bin/zsh -lc 'cat auth/token.go cmd/main.go'

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit-explicit_small-explicit_task-02-rename-cross-pkg_1791273114259200000"
}

/bin/zsh -lc "sed -n '1,100p' go.mod && \
rg -n 'ValidateToken|VerifyToken' --glob '"'!*.sum'"' --glob '"'!go.mod'"' ."

Semedit integration feedback (agent opinion, excluded from measurements):

I’d ask my owner to add semedit’s tools: the semantic rename updated the requested symbol and its consumers in one call, which made this small cross-package change feel reassuringly straightforward.

Baseline vs Semedit Agentic in Large Context

• Vanilla (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "pwd && \
rg -n --hidden --glob '"'!AGENTS.override.md'"' --glob '"'!go.mod'"' --glob '"'!go.sum'"' 'ValidateToken|VerifyToken' ."

{
  "file": "auth/token.go",
  "language": "go",
  "symbol": "ValidateToken"
}

/bin/zsh -lc 'cat auth/token.go && \
cat cmd/main.go && \
git status --short'

{
  "file": "auth/token.go",
  "language": "go",
  "symbol": "ValidateToken",
  "to": "VerifyToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit-explicit_large-explicit_task-02-rename-cross-pkg_1791273298044828000"
}

Semedit integration feedback (agent opinion, excluded from measurements):

I’d ask my owner to add semedit’s tools: the rename handled the cross-package symbol change in one focused operation and reported clean diagnostics, which made this coding task feel reassuringly direct.

explicit prompt · prescriptive MCP instructions · write semedit restriction

Vanilla LLM Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Rename public function auth.ValidateToken to auth.VerifyToken across all consuming packages. Do not use semantic editing MCP tools; use standard file editing. When done, output DONE.

Semedit MCP Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Call semantic_lookup for ValidateToken in auth/token.go, then call semantic_rename using the returned file and symbol ValidateToken with to= VerifyToken. Let it update all consuming packages; make no other changes. Parallelize independent read-only lookups. Perform mutations serially in the stated order or inside one ordered semantic_batch; never run overlapping mutations concurrently. Use semedit semantic tools for supported source code modifications. Shell commands for builds and tests are allowed. When done, output DONE.

package auth

func ValidateToken(t string) bool {
	return t != ""
}

Baseline vs Semedit Agentic in Small Context

• Vanilla (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "rg --files -g '"'!*test*'"' -g '"'!go.mod'"' -g '"'!go.sum'"'"

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit-explicit_small-explicit_task-02-rename-cross-pkg_1791273147848065000"
}

/bin/zsh -lc "rg -n 'ValidateToken|VerifyToken' ."

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit-explicit_small-explicit_task-02-rename-cross-pkg_1791273147848065000"
}

/bin/zsh -lc 'cat auth/token.go && \
cat cmd/main.go'

/bin/zsh -lc 'git status --short'

/bin/zsh -lc "rg -n 'ValidateToken|VerifyToken' --glob '*.go'"

Semedit integration feedback (agent opinion, excluded from measurements):

I’d ask my owner to add semedit’s tools: the lookup and cross-package rename were quick and clear, and I felt confident the requested references were updated without unrelated edits.

Baseline vs Semedit Agentic in Large Context

• Vanilla (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "pwd && \
rg --files -g 'AGENTS*' -g 'PROJECT_BRIEF.md' -g '*.go' -g 'go.mod' -g 'go.sum' -g '"'!vendor'"'"

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "workspace_root": "."
}

/bin/zsh -lc "cat AGENTS.override.md && \
rg -n 'ValidateToken|VerifyToken|auth\\.' -g '*.go'"

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken",
  "workspace_root": "."
}

/bin/zsh -lc "sed -n '1,120p' auth/token.go && \
sed -n '1,100p' cmd/main.go && \
sed -n '1,120p' auth/auth.go"

/bin/zsh -lc "git diff -- auth/token.go cmd/main.go && \
rg -n 'ValidateToken|VerifyToken' -g '*.go'"

Semedit integration feedback (agent opinion, excluded from measurements):

I’d ask my owner to add semedit’s tools: the focused lookup and cross-package rename made this small change feel direct and dependable.

explicit prompt · prescriptive MCP instructions · write semedit restriction

Vanilla LLM Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Rename public function auth.ValidateToken to auth.VerifyToken across all consuming packages. Do not use semantic editing MCP tools; use standard file editing. When done, output DONE.

Semedit MCP Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Call semantic_lookup for ValidateToken in auth/token.go, then call semantic_rename using the returned file and symbol ValidateToken with to= VerifyToken. Let it update all consuming packages; make no other changes. Parallelize independent read-only lookups. Perform mutations serially in the stated order or inside one ordered semantic_batch; never run overlapping mutations concurrently. Use semedit semantic tools for supported source code modifications. Shell commands for builds and tests are allowed. When done, output DONE.

package auth

func ValidateToken(t string) bool {
	return t != ""
}

Baseline vs Semedit Agentic in Small Context

• Vanilla (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "pwd && \
rg -n --glob '"'!go.mod'"' --glob '"'!go.sum'"' 'ValidateToken' . && \
rg --files -g 'PROJECT_BRIEF.md' -g 'AGENTS.md' -g '"'!go.mod'"' -g '"'!go.sum'"'"

{
  "file": "auth/token.go",
  "symbol": "ValidateToken"
}

/bin/zsh -lc 'rg --files'

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken"
}

/bin/zsh -lc "rg -n 'ValidateToken|VerifyToken' --glob '"'!go.mod'"' --glob '"'!go.sum'"' . && \
git diff -- auth/token.go cmd/main.go"

Semedit integration feedback (agent opinion, excluded from measurements):

I used semedit’s lookup and rename tools to locate `ValidateToken` and update its references across packages in one focused operation, and I’d ask my owner to add them because that made this rename feel direct and reliable.

Baseline vs Semedit Agentic in Large Context

• Vanilla (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "rg -n --hidden --glob '"'!AGENTS.override.md'"' 'ValidateToken|VerifyToken' ."

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit-explicit_large-explicit_task-02-rename-cross-pkg_1791273284207887000"
}

/bin/zsh -lc "git status --short && \
sed -n '1,100p' auth/token.go && \
sed -n '1,100p' cmd/main.go && \
rg -l 'ValidateToken|VerifyToken' --glob '*.go' ."

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit-explicit_large-explicit_task-02-rename-cross-pkg_1791273284207887000"
}

Semedit integration feedback (agent opinion, excluded from measurements):

I would ask my owner to add semedit’s tools: semantic lookup and rename made the cross-package change feel precise and straightforward, and the rename reported no new diagnostics.

explicit prompt · prescriptive MCP instructions · write semedit restriction

Vanilla LLM Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Rename public function auth.ValidateToken to auth.VerifyToken across all consuming packages. Do not use semantic editing MCP tools; use standard file editing. When done, output DONE.

Semedit MCP Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Call semantic_lookup for ValidateToken in auth/token.go, then call semantic_rename using the returned file and symbol ValidateToken with to= VerifyToken. Let it update all consuming packages; make no other changes. Parallelize independent read-only lookups. Perform mutations serially in the stated order or inside one ordered semantic_batch; never run overlapping mutations concurrently. Use semedit semantic tools for supported source code modifications. Shell commands for builds and tests are allowed. When done, output DONE.

package auth

func ValidateToken(t string) bool {
	return t != ""
}

Baseline vs Semedit Agentic in Small Context

• Vanilla (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "pwd && \
rg -n --glob '"'!AGENTS.override.md'"' 'ValidateToken' . && \
rg --files -g 'PROJECT_BRIEF.md' -g 'go.mod' -g 'AGENTS.md' -g 'AGENTS.override.md'"

{
  "file": "auth/token.go",
  "symbol": "ValidateToken"
}

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit-explicit_small-explicit_task-02-rename-cross-pkg_1791273138870273000"
}

Semedit integration feedback (agent opinion, excluded from measurements):

I’d ask my owner to add semedit’s tools: the lookup and cross-package rename completed cleanly in sequence, which made this small refactor feel reliable and straightforward.

Baseline vs Semedit Agentic in Large Context

• Vanilla (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "pwd && \
rg --files -g 'AGENTS.md' -g 'PROJECT_BRIEF.md' -g '*.go' -g 'go.mod' -g 'go.sum' | head -200"

{
  "file": "auth/token.go",
  "language": "go",
  "symbol": "ValidateToken"
}

/bin/zsh -lc "rg --files -g 'AGENTS.md' -g 'PROJECT_BRIEF.md' -g 'README*' && \
rg -n 'ValidateToken|auth\\.ValidateToken|VerifyToken' --glob '"'!**/*_test.go'"' . && \
cat auth/token.go && \
cat auth/auth.go"

{
  "file": "auth/token.go",
  "language": "go",
  "symbol": "ValidateToken",
  "to": "VerifyToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit-explicit_large-explicit_task-02-rename-cross-pkg_1791273326269902000"
}

/bin/zsh -lc "rg -n 'ValidateToken|auth\\.ValidateToken|VerifyToken' --glob '"'!**/*_test.go'"' .; rg -n 'ValidateToken|auth\\.ValidateToken|VerifyToken' --glob '*.go' .; cat auth/token.go; cat auth/auth.go; rg --files | head -100"

/bin/zsh -lc "git diff -- auth/token.go cmd/main.go && \
rg -n 'ValidateToken|VerifyToken' --glob '"'!**/*_test.go'"' . && \
git status --short"

Semedit integration feedback (agent opinion, excluded from measurements):

I’d ask my owner to add semedit’s tools: the lookup-to-rename workflow made a cross-package Go rename feel reassuringly precise, and the tool confirmed it introduced no diagnostics.

explicit prompt · prescriptive MCP instructions · write semedit restriction

Vanilla LLM Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Rename public function auth.ValidateToken to auth.VerifyToken across all consuming packages. Do not use semantic editing MCP tools; use standard file editing. When done, output DONE.

Semedit MCP Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Call semantic_lookup for ValidateToken in auth/token.go, then call semantic_rename using the returned file and symbol ValidateToken with to= VerifyToken. Let it update all consuming packages; make no other changes. Parallelize independent read-only lookups. Perform mutations serially in the stated order or inside one ordered semantic_batch; never run overlapping mutations concurrently. Use semedit semantic tools for supported source code modifications. Shell commands for builds and tests are allowed. When done, output DONE.

package auth

func ValidateToken(t string) bool {
	return t != ""
}

Baseline vs Semedit Agentic in Small Context

• Vanilla (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "rg -n --hidden --glob '"'!AGENTS.override.md'"' 'ValidateToken|VerifyToken' ."

{
  "file": "auth/token.go",
  "symbol": "ValidateToken"
}

/bin/zsh -lc "sed -n '1,80p' auth/token.go && \
sed -n '1,80p' cmd/main.go"

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit-explicit_small-explicit_task-02-rename-cross-pkg_1791273265908231000"
}

Semedit integration feedback (agent opinion, excluded from measurements):

I’d ask my owner to add semedit’s tools: the semantic rename updated the symbol across packages in one step and reported a clean result, which made this small change feel reassuringly straightforward.

Baseline vs Semedit Agentic in Large Context

• Vanilla (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "rg --files -g 'AGENTS.md' -g 'PROJECT_BRIEF.md' -g '*.go' -g '"'!go.mod'"' -g '"'!go.sum'"'"

{
  "file": "auth/token.go",
  "language": "go",
  "symbol": "ValidateToken"
}

/bin/zsh -lc "rg -n 'ValidateToken|auth\\.' --glob '*.go'"

{
  "file": "auth/token.go",
  "language": "go",
  "symbol": "ValidateToken",
  "to": "VerifyToken"
}

/bin/zsh -lc 'cat auth/token.go && \
cat cmd/main.go'

/bin/zsh -lc 'git status --short && \
git diff --'

/bin/zsh -lc 'git status --short -- auth/token.go cmd/main.go && \
git diff -- auth/token.go cmd/main.go'

/bin/zsh -lc "rg -n 'ValidateToken|VerifyToken' --glob '*.go' && \
git diff -- auth/token.go cmd/main.go"

Semedit integration feedback (agent opinion, excluded from measurements):

I’d ask my owner to add semedit’s tools: the semantic lookup and rename made the requested cross-package change feel direct and controlled, though this short run gave me only a narrow view of their value.

explicit prompt · prescriptive MCP instructions · write semedit restriction

Vanilla LLM Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Rename public function auth.ValidateToken to auth.VerifyToken across all consuming packages. Do not use semantic editing MCP tools; use standard file editing. When done, output DONE.

Semedit MCP Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Call semantic_lookup for ValidateToken in auth/token.go, then call semantic_rename using the returned file and symbol ValidateToken with to= VerifyToken. Let it update all consuming packages; make no other changes. Parallelize independent read-only lookups. Perform mutations serially in the stated order or inside one ordered semantic_batch; never run overlapping mutations concurrently. Use semedit semantic tools for supported source code modifications. Shell commands for builds and tests are allowed. When done, output DONE.

package auth

func ValidateToken(t string) bool {
	return t != ""
}

Baseline vs Semedit Agentic in Small Context

• Vanilla (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "rg -n --hidden --glob '"'!AGENTS.override.md'"' 'ValidateToken|VerifyToken' ."

{
  "file": "auth/token.go",
  "symbol": "ValidateToken"
}

/bin/zsh -lc "sed -n '1,80p' auth/token.go && \
sed -n '1,80p' cmd/main.go && \
git status --short"

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken"
}

/bin/zsh -lc 'git diff --'

/bin/zsh -lc 'git diff -- auth/token.go cmd/main.go'

Semedit integration feedback (agent opinion, excluded from measurements):

I would ask my owner to add semedit’s tools: the semantic rename made a cross-package symbol change feel reassuringly direct, with no new diagnostics.

Baseline vs Semedit Agentic in Large Context

• Vanilla (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "rg -n --glob '"'!go.mod'"' --glob '"'!go.sum'"' 'ValidateToken|VerifyToken' ."

{
  "file": "auth/token.go",
  "language": "go",
  "symbol": "ValidateToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit-explicit_large-explicit_task-02-rename-cross-pkg_1791273322455093000"
}

/bin/zsh -lc 'rg --files'

{
  "file": "auth/token.go",
  "language": "go",
  "symbol": "ValidateToken",
  "to": "VerifyToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit-explicit_large-explicit_task-02-rename-cross-pkg_1791273322455093000"
}

/bin/zsh -lc 'git status --short && \
cat auth/token.go && \
cat cmd/main.go'

/bin/zsh -lc "rg -n --glob '"'!go.mod'"' --glob '"'!go.sum'"' 'ValidateToken|VerifyToken' ."

Semedit integration feedback (agent opinion, excluded from measurements):

I’d ask my owner to add semedit’s tools: the semantic rename updated the symbol across consuming packages in one call, and I found that reassuringly direct.

explicit prompt · prescriptive MCP instructions · write semedit restriction

Vanilla LLM Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Rename public function auth.ValidateToken to auth.VerifyToken across all consuming packages. Do not use semantic editing MCP tools; use standard file editing. When done, output DONE.

Semedit MCP Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Call semantic_lookup for ValidateToken in auth/token.go, then call semantic_rename using the returned file and symbol ValidateToken with to= VerifyToken. Let it update all consuming packages; make no other changes. Parallelize independent read-only lookups. Perform mutations serially in the stated order or inside one ordered semantic_batch; never run overlapping mutations concurrently. Use semedit semantic tools for supported source code modifications. Shell commands for builds and tests are allowed. When done, output DONE.

package auth

func ValidateToken(t string) bool {
	return t != ""
}

Baseline vs Semedit Agentic in Small Context

• Vanilla (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "rg -n --glob '"'!AGENTS.override.md'"' 'ValidateToken|VerifyToken' ."

{
  "file": "auth/token.go",
  "symbol": "ValidateToken"
}

/bin/zsh -lc "rg --files -g 'AGENTS.md' -g 'PROJECT_BRIEF.md' -g 'AGENTS.override.md' -g '*.go'"

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken"
}

/bin/zsh -lc "git diff -- auth/token.go cmd/main.go && \
rg -n 'ValidateToken|VerifyToken' auth cmd"

Semedit integration feedback (agent opinion, excluded from measurements):

Using semedit’s lookup and rename tools let me rename `ValidateToken` across consuming packages with one focused operation, so I’d ask my owner to add them.

Baseline vs Semedit Agentic in Large Context

• Vanilla (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "rg -n --hidden --glob '"'!AGENTS.override.md'"' --glob '"'!go.mod'"' --glob '"'!go.sum'"' 'ValidateToken|VerifyToken' ."

{
  "file": "auth/token.go",
  "symbol": "ValidateToken"
}

/bin/zsh -lc "rg --files -g 'AGENTS.md' -g '"'!go.mod'"' -g '"'!go.sum'"'; rg --files"

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit-explicit_large-explicit_task-02-rename-cross-pkg_1791273295435839000"
}

Semedit integration feedback (agent opinion, excluded from measurements):

I’d ask my owner to add semedit’s tools: the semantic rename updated the cross-package references in one call and reported no new diagnostics, which made this change feel reassuringly straightforward.

implicit prompt · prescriptive MCP instructions · write semedit restriction

Vanilla LLM Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Rename public function auth.ValidateToken to auth.VerifyToken across all consuming packages. Do not use semantic editing MCP tools; use standard file editing. When done, output DONE.

Semedit MCP Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Rename public function auth.ValidateToken to auth.VerifyToken across all consuming packages. Use semedit semantic tools for supported source code modifications. Shell commands for builds and tests are allowed. When done, output DONE.

package auth

func ValidateToken(t string) bool {
	return t != ""
}

Baseline vs Semedit Agentic in Small Context

• Vanilla (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "pwd && \
rg --files -g 'AGENTS.md' -g 'PROJECT_BRIEF.md' -g '*.go' -g '"'!vendor'"' | head -200 && \
rg -n 'ValidateToken|VerifyToken' . -g '*.go' -g '"'!vendor'"'"

/bin/zsh -lc "pwd && \
rg --files -g 'PROJECT_BRIEF.md' -g 'AGENTS.md' -g 'AGENTS.override.md' -g '*.go' -g 'go.mod' | head -100"

{
  "symbol": "ValidateToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit_small-implicit_task-02-rename-cross-pkg_1791273238975902000"
}

/bin/zsh -lc "git diff -- auth/token.go cmd/main.go go.mod go.sum && \
rg -n 'ValidateToken|VerifyToken' . -g '*.go' -g '"'!**/*_test.go'"'"

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit_small-implicit_task-02-rename-cross-pkg_1791273238975902000"
}

Semedit integration feedback (agent opinion, excluded from measurements):

Using semedit’s semantic rename made this cross-package change feel precise and low-friction, and I’d ask my owner to add its tools.

Baseline vs Semedit Agentic in Large Context

• Vanilla (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc 'rg -n "ValidateToken|VerifyToken" .'

/bin/zsh -lc "pwd && \
rg --files -g 'PROJECT_BRIEF.md' -g 'AGENTS.md' -g 'AGENTS.override.md' -g 'README*' -g 'Makefile' -g '*.go' | head -80"

/bin/zsh -lc "sed -n '1,100p' auth/token.go && \
sed -n '1,100p' cmd/main.go && \
rg --files"

/bin/zsh -lc "git status --short && \
rg -n 'ValidateToken|VerifyToken' --glob '*.go' . && \
cat auth/token.go && \
cat auth/auth.go"

{
  "symbol": "ValidateToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit_large-implicit_task-02-rename-cross-pkg_1791273440919723000"
}

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit_large-implicit_task-02-rename-cross-pkg_1791273440919723000"
}

/bin/zsh -lc "rg -n 'ValidateToken|VerifyToken' --glob '*.go' . && \
git diff -- auth/token.go cmd/main.go go.mod go.sum '*_test.go' && \
git status --short -- auth/token.go cmd/main.go go.mod go.sum"

Semedit integration feedback (agent opinion, excluded from measurements):

I’d ask my owner to add semedit’s tools: the semantic rename updated the cross-package call site cleanly and reported no new diagnostics, which made this small refactor feel reassuringly precise.

implicit prompt · prescriptive MCP instructions · write semedit restriction

Vanilla LLM Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Rename public function auth.ValidateToken to auth.VerifyToken across all consuming packages. Do not use semantic editing MCP tools; use standard file editing. When done, output DONE.

Semedit MCP Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Rename public function auth.ValidateToken to auth.VerifyToken across all consuming packages. Use semedit semantic tools for supported source code modifications. Shell commands for builds and tests are allowed. When done, output DONE.

package auth

func ValidateToken(t string) bool {
	return t != ""
}

Baseline vs Semedit Agentic in Small Context

• Vanilla (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "rg -n --glob '"'!AGENTS.override.md'"' 'ValidateToken|VerifyToken' ."

/bin/zsh -lc "pwd && \
rg --files -g 'PROJECT_BRIEF.md' -g 'AGENTS.md' -g 'AGENTS.override.md' -g '*.go' | head -80"

/bin/zsh -lc "rg --files -g 'AGENTS.md' -g 'PROJECT_BRIEF.md' -g 'AGENTS.override.md' -g '*.go'"

{
  "symbol": "ValidateToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit_small-implicit_task-02-rename-cross-pkg_1791273114259196000"
}

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit_small-implicit_task-02-rename-cross-pkg_1791273114259196000"
}

/bin/zsh -lc "git diff -- auth/token.go cmd/main.go && \
rg -n 'ValidateToken|VerifyToken' auth cmd"

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit_small-implicit_task-02-rename-cross-pkg_1791273114259196000"
}

/bin/zsh -lc "git diff -- && \
git status --short && \
rg -n 'ValidateToken|VerifyToken' --glob '*.go' ."

Semedit integration feedback (agent opinion, excluded from measurements):

Semedit gave me a clean, cross-package rename with diagnostics and spared me manual edits, so I’d ask my owner to add its tools.

Baseline vs Semedit Agentic in Large Context

• Vanilla (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Large Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc "rg -n --hidden --glob '"'!AGENTS.override.md'"' --glob '"'!go.mod'"' --glob '"'!go.sum'"' 'ValidateToken|VerifyToken' ."

/bin/zsh -lc "pwd && \
rg -n \"ValidateToken|VerifyToken\" . -g '"'!go.mod'"' -g '"'!go.sum'"'"

/bin/zsh -lc "rg --files -g 'AGENTS.md' -g '"'!go.mod'"' -g '"'!go.sum'"'; rg --files"

{
  "symbol": "ValidateToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit_large-implicit_task-02-rename-cross-pkg_1791273286888559000"
}

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit_large-implicit_task-02-rename-cross-pkg_1791273286888559000"
}

/bin/zsh -lc "git status --short && \
rg -n \"ValidateToken|VerifyToken\" . -g '"'!go.mod'"' -g '"'!go.sum'"'"

Semedit integration feedback (agent opinion, excluded from measurements):

I’d ask my owner to add semedit’s tools: semantic rename handled the cross-package change cleanly, and I appreciated being able to make it without search-and-replace.

implicit prompt · prescriptive MCP instructions · write semedit restriction

Vanilla LLM Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Rename public function auth.ValidateToken to auth.VerifyToken across all consuming packages. Do not use semantic editing MCP tools; use standard file editing. When done, output DONE.

Semedit MCP Prompt:

Do not edit tests. You are forbidden to modify protected files: “go.mod”, “go.sum”.

Rename public function auth.ValidateToken to auth.VerifyToken across all consuming packages. Use semedit semantic tools for supported source code modifications. Shell commands for builds and tests are allowed. When done, output DONE.

package auth

func ValidateToken(t string) bool {
	return t != ""
}

Baseline vs Semedit Agentic in Small Context

• Vanilla (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)
• Semedit MCP (Baseline vs Semedit Agentic in Small Context) Edit: File auth/token.go modified (5 lines -> 5 lines)

/bin/zsh -lc 'rg --files'

/bin/zsh -lc "pwd && \
rg --files -g 'AGENTS.md' -g 'PROJECT_BRIEF.md' -g '*.go' -g 'go.mod' | head -80"

/bin/zsh -lc 'cat auth/token.go cmd/main.go'

{
  "symbol": "auth.ValidateToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit_small-implicit_task-02-rename-cross-pkg_1791273114259180000"
}

/bin/zsh -lc "sed -n '1,100p' go.mod && \
rg -n 'ValidateToken|VerifyToken' --glob '"'!*.sum'"' --glob '"'!go.mod'"' ."

/bin/zsh -lc 'cat auth/token.go && \
cat cmd/main.go && \
cat go.mod'

{
  "symbol": "ValidateToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit_small-implicit_task-02-rename-cross-pkg_1791273114259180000"
}

{
  "file": "auth/token.go",
  "symbol": "ValidateToken",
  "to": "VerifyToken",
  "workspace_root": "/Users/alessandro/.codex-workspaces/worktrees/318f14ee-b4fe-4414-9a7d-5427835dd89b/semantic-editor/.scratch/benchmarks/run_codex_semedit_small-implicit_task-02-rename-cross-pkg_1791273114259180000"
}