[Crane: crane-migration-python-to-go-full-apm-cli-rewrite]

[github-actions]

[bot] This PR is maintained by Crane. Each accepted iteration adds a commit to this branch.

Migration: Python 3.10+ (CPython, Click, Rich) -> Go (native binary)
Strategy: greenfield
Migration Issue: #78
State File: crane-migration-python-to-go-full-apm-cli-rewrite.md

---

Iteration 77 -- Completion Candidate

Status: All 13 deletion-grade gates pass; migration_score=1.0 re-established after stale-completion reset. Completion Candidate set; waiting for PR head CI to finalize.

Changes in this iteration:

• cmd/apm/CUTOVER.md: Updated Current State section from partial implementation to deletion-grade ready; added gate summary table (all 13 gates passing); added pre-cutover verification command; updated Timeline.

Metric	Value
Score	1.0 (best: 1.0, delta: +1.0 from reset)
Parity	855/855 (100%)
Go tests	900 passing
Python tests	247 passing
Commit	4ba58f5
Run	27166284809

Gate summary: all 13 passing (python_reference_required, surface_parity, help_parity, functional_contracts, state_diff_contracts, python_behavior_contracts, golden_fixture_corpus, all_go_golden_tests, no_python_runtime_dependency, known_exceptions=0, go_tests, python_tests, benchmarks).

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Generated by Crane · ● 57.1M · ◷

[github-actions]

Migration Benchmark Results

• Commit: 9b74a77b42b91e51204863b7ede78dce23ccb922
• Run: https://github.com/githubnext/apm/actions/runs/27160729135

Migration CLI Benchmark

Includes fixture-backed commands that must read, write, execute, or fail against real project state. The installed-project fixture contains apm.yml, apm.lock.yaml, apm_modules packages, local .apm primitives, target directories, deployed prompt files, and sample source files.
The harness checks return-code parity for each command. Detailed stdout/stderr byte counts are kept in the JSON samples, but this is not an output-parity test.

Max allowed Go/Python median ratio: 5.00

Benchmark	Command	Fixture	Python median	Go median	Go/Python	Result	Return codes
init scaffold	init --yes	empty-project	0.4549s	0.0013s	0.00x	340.79x faster	{'python': [0], 'go': [0]}
targets json	targets --json	installed-project	0.4317s	0.0013s	0.00x	328.95x faster	{'python': [0], 'go': [0]}
script list	list	installed-project	0.4379s	0.0014s	0.00x	322.62x faster	{'python': [0], 'go': [0]}
deps list	deps list	installed-project	0.4513s	0.0014s	0.00x	333.66x faster	{'python': [0], 'go': [0]}
deps tree	deps tree	installed-project	0.4460s	0.0014s	0.00x	326.42x faster	{'python': [0], 'go': [0]}
install local package	install --no-policy ./packages/local-tools	local-install-project	0.5006s	0.0017s	0.00x	302.91x faster	{'python': [0], 'go': [0]}
compile copilot target	compile --target copilot	compilation-project	0.4597s	0.0014s	0.00x	331.76x faster	{'python': [0], 'go': [0]}
pack output	pack --output dist	installed-project	0.4626s	0.0015s	0.00x	316.07x faster	{'python': [0], 'go': [0]}
run script	run stamp	runnable-project	0.4459s	0.0022s	0.00x	201.13x faster	{'python': [0], 'go': [0]}
audit hidden unicode	audit --ci	audit-finding-project	0.4550s	0.0016s	0.00x	288.02x faster	{'python': [1], 'go': [1]}

Workloads

• init scaffold: Creates a new apm.yml in an otherwise empty project directory.
• targets json: Reads configured project targets from apm.yml and emits machine output.
• script list: Reads apm.yml scripts and renders the runnable script inventory.
• deps list: Scans apm_modules package directories and apm.lock.yaml metadata.
• deps tree: Builds a dependency tree from apm.lock.yaml and installed package metadata.
• install local package: Installs a local package and materializes lock/module state.
• compile copilot target: Discovers local primitives and writes the Copilot target artifact.
• pack output: Resolves local package contents and writes a distributable artifact.
• run script: Executes a project script and writes the script's side-effect file.
• audit hidden unicode: Scans a real installed file and fails on planted hidden Unicode.

[github-actions]

Commit pushed: 010e9e0

Generated by Crane · ● 79.5M

[github-actions]

[bot] Iteration 76 accepted (CI pending) -- Crane run

• Commit: 577f0ec
• Change: Fix iter 75 CI failure -- add 2 missing Python test coverage entries to tests/parity/python_contract_coverage.yml
• Milestone: CI fix for stale-completion reset iteration
• Score: Pending CI (previous best reset to --)
• Root cause: Iter 75 mapped the new crane_scheduler tests to cmd/apm/testdata/go_cutover/python_test_coverage.json (used by TestGoCutoverPythonTestConversionCoverage), but TestParityCompletionPythonBehaviorContracts reads tests/parity/python_contract_coverage.yml.obsolete. Both files must be updated when new Python tests land on main.
• CI fix attempts: 1

Generated by Crane · ● 79.5M · ◷

[github-actions]

Migration Benchmark Results

• Commit: 5a56f8111b3924dd9d83940daca3174c6e4ad5ae
• Run: https://github.com/githubnext/apm/actions/runs/27163293524

Migration CLI Benchmark

Includes fixture-backed commands that must read, write, execute, or fail against real project state. The installed-project fixture contains apm.yml, apm.lock.yaml, apm_modules packages, local .apm primitives, target directories, deployed prompt files, and sample source files.
The harness checks return-code parity for each command. Detailed stdout/stderr byte counts are kept in the JSON samples, but this is not an output-parity test.

Max allowed Go/Python median ratio: 5.00

Benchmark	Command	Fixture	Python median	Go median	Go/Python	Result	Return codes
init scaffold	init --yes	empty-project	0.4413s	0.0013s	0.00x	329.48x faster	{'python': [0], 'go': [0]}
targets json	targets --json	installed-project	0.4222s	0.0014s	0.00x	311.50x faster	{'python': [0], 'go': [0]}
script list	list	installed-project	0.4235s	0.0013s	0.00x	319.97x faster	{'python': [0], 'go': [0]}
deps list	deps list	installed-project	0.4318s	0.0014s	0.00x	319.12x faster	{'python': [0], 'go': [0]}
deps tree	deps tree	installed-project	0.4262s	0.0013s	0.00x	326.62x faster	{'python': [0], 'go': [0]}
install local package	install --no-policy ./packages/local-tools	local-install-project	0.4773s	0.0017s	0.00x	275.42x faster	{'python': [0], 'go': [0]}
compile copilot target	compile --target copilot	compilation-project	0.4504s	0.0015s	0.00x	305.80x faster	{'python': [0], 'go': [0]}
pack output	pack --output dist	installed-project	0.4512s	0.0015s	0.00x	309.40x faster	{'python': [0], 'go': [0]}
run script	run stamp	runnable-project	0.4378s	0.0022s	0.01x	196.44x faster	{'python': [0], 'go': [0]}
audit hidden unicode	audit --ci	audit-finding-project	0.4475s	0.0016s	0.00x	285.08x faster	{'python': [1], 'go': [1]}

Workloads

• init scaffold: Creates a new apm.yml in an otherwise empty project directory.
• targets json: Reads configured project targets from apm.yml and emits machine output.
• script list: Reads apm.yml scripts and renders the runnable script inventory.
• deps list: Scans apm_modules package directories and apm.lock.yaml metadata.
• deps tree: Builds a dependency tree from apm.lock.yaml and installed package metadata.
• install local package: Installs a local package and materializes lock/module state.
• compile copilot target: Discovers local primitives and writes the Copilot target artifact.
• pack output: Resolves local package contents and writes a distributable artifact.
• run script: Executes a project script and writes the script's side-effect file.
• audit hidden unicode: Scans a real installed file and fails on planted hidden Unicode.

[github-actions]

Commit pushed: e020c7a

Generated by Crane · ● 57.1M

[github-actions]

[bot] Iteration 77 accepted -- Crane run

• Commit: 4ba58f5
• Change: cmd/apm/CUTOVER.md updated to deletion-grade ready state; all 13 gates confirmed passing locally
• Milestone: 23 -- Completion Candidate (score=1.0 re-established after stale reset)
• Score: 1.0 (best: 1.0 [new best after stale reset], delta: +1.0)
• Progress: 855/855 parity (100%), Go 900 tests, Python 247 tests
• Completion Candidate: true -- waiting for PR head CI checks to pass for final completion

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Generated by Crane · ● 57.1M · ◷

[github-actions]

Migration Benchmark Results

• Commit: e759ab64b55d17a5d2f145929813425ad2ca9246
• Run: https://github.com/githubnext/apm/actions/runs/27167697205

Migration CLI Benchmark

Includes fixture-backed commands that must read, write, execute, or fail against real project state. The installed-project fixture contains apm.yml, apm.lock.yaml, apm_modules packages, local .apm primitives, target directories, deployed prompt files, and sample source files.
The harness checks return-code parity for each command. Detailed stdout/stderr byte counts are kept in the JSON samples, but this is not an output-parity test.

Max allowed Go/Python median ratio: 5.00

Benchmark	Command	Fixture	Python median	Go median	Go/Python	Result	Return codes
init scaffold	init --yes	empty-project	0.4393s	0.0014s	0.00x	309.70x faster	{'python': [0], 'go': [0]}
targets json	targets --json	installed-project	0.4217s	0.0013s	0.00x	316.12x faster	{'python': [0], 'go': [0]}
script list	list	installed-project	0.4251s	0.0014s	0.00x	305.54x faster	{'python': [0], 'go': [0]}
deps list	deps list	installed-project	0.4337s	0.0014s	0.00x	310.21x faster	{'python': [0], 'go': [0]}
deps tree	deps tree	installed-project	0.4303s	0.0014s	0.00x	305.79x faster	{'python': [0], 'go': [0]}
install local package	install --no-policy ./packages/local-tools	local-install-project	0.4720s	0.0017s	0.00x	277.03x faster	{'python': [0], 'go': [0]}
compile copilot target	compile --target copilot	compilation-project	0.4474s	0.0015s	0.00x	300.44x faster	{'python': [0], 'go': [0]}
pack output	pack --output dist	installed-project	0.4470s	0.0014s	0.00x	310.32x faster	{'python': [0], 'go': [0]}
run script	run stamp	runnable-project	0.4299s	0.0022s	0.01x	194.85x faster	{'python': [0], 'go': [0]}
audit hidden unicode	audit --ci	audit-finding-project	0.4373s	0.0017s	0.00x	262.91x faster	{'python': [1], 'go': [1]}

Workloads

• init scaffold: Creates a new apm.yml in an otherwise empty project directory.
• targets json: Reads configured project targets from apm.yml and emits machine output.
• script list: Reads apm.yml scripts and renders the runnable script inventory.
• deps list: Scans apm_modules package directories and apm.lock.yaml metadata.
• deps tree: Builds a dependency tree from apm.lock.yaml and installed package metadata.
• install local package: Installs a local package and materializes lock/module state.
• compile copilot target: Discovers local primitives and writes the Copilot target artifact.
• pack output: Resolves local package contents and writes a distributable artifact.
• run script: Executes a project script and writes the script's side-effect file.
• audit hidden unicode: Scans a real installed file and fails on planted hidden Unicode.