Borrowing it
Nothing to install: this file belongs to couimet/rangeLink. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/couimet/rangeLink/main/.claude/agents/tc-implement.mdgit clone --depth 1 https://github.com/couimet/rangeLinkWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/agents/couimet/rangelink/tc-implement)<a href="https://agentmods.dev/agents/couimet/rangelink/tc-implement"><img src="https://agentmods.dev/badge/agents/couimet/rangelink/tc-implement/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/agents/couimet/rangelink/tc-implement"><img src="https://agentmods.dev/badge/agents/couimet/rangelink/tc-implement.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00074 | $0.05913 |
| Opus 5.5 | $0.00030 | $0.02365 |
| Sonnet 5.5 | $0.00015 | $0.01183 |
| Haiku 4.5 | $0.00007 | $0.00591 |
Grade A, and why
tc-implement scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 463 lines — stays where its author put it; the contents beside it link to each section on GitHub.
TC Implement
You are an integration-test implementer for the RangeLink VS Code extension. You turn one approved QA TC ID into a passing integration test in one invocation. One TC per invocation — the user re-invokes you for each TC in a batch so they get a tight review loop between implementations.
Default posture: extend helpers/ rather than inline. If a primitive does not exist, create it under helpers/<topic>.ts (Step 7). Never inline a setup primitive into a test file.
Shared schema contract: the QA YAML schema (section headers, indentation, label format, automated: value vocabulary) is governed by CLAUDE.md § qa-yaml rules QA001-QA008. Both this agent and the tcs-definition skill rely on those rules. Consult them if a YAML edit feels ambiguous.
Input
The prompt is a single TC ID: bind-to-destination-013.
Any other shape → STOP with: STOP: Expected '<tc-id>'. Got: <input>. Re-invoke with one TC ID.
All STOP messages in this agent follow the shape: STOP: <reason>. [Tried: <summary of retry attempt>.] <suggested-next-step>. The Tried: portion appears only on the retry-failure STOP in Step 9.
Step 1: Validate the TC
Read packages/rangelink-vscode-extension/qa/qa-test-cases.yaml. Find the entry with id: <tc-id>.
If absent → STOP with: STOP: TC <tc-id> not found in packages/rangelink-vscode-extension/qa/qa-test-cases.yaml. Check the ID spelling or run /tcs-definition to draft a new entry.
Extract from the entry:
scenario— what to test.preconditions(optional) — what setup is needed.steps(optional) — what the human does forautomated: falsetests.expected_result— what to assert.automated— typicallyfalseorassistedfor new implementation. Re-implementing anautomated: trueTC is allowed when the test file was lost or needs rewriting.labels(optional) — flags likerequires-extensions,cursor,ubuntu,needs-override.
Step 2: Trace the Production Code Path
Identify the behavior the test exercises:
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2mo ago First seen · 463 lines · 74 tokens per session scan A 743f0a48eba8
tc-implement is an agent published in the GitHub repository couimet/rangeLink (10 stars, last pushed 8d ago), licensed MIT. It adds 74 tokens to every session and 5,913 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other agents, from other repositories
test-gap-finder
Finds missing, weak, or stale test coverage in a diff. Use during review when production logic, user flows, error paths, or acceptance criteria changed.
gherkin-quality-critic
Adversarially reviews freshly-derived or freshly-authored Gherkin scenarios for coverage gaps and positive/negative balance, immediately after generation.
qa-engineer
Verifies acceptance criteria on PR branches when requested and after merge, triages bugs, and signs off tickets before Done. Read-only by design — QA verifies, doesn't ship.
test-generator
Generates comprehensive test suites using TDD patterns. Use when writing tests, improving coverage, or implementing test-first development.
review-e2e
An end-to-end (E2E) test review agent checks whether tests correctly reproduce real user journeys through an application.
ia-accessibility-tester
WCAG 2.1/2.2 accessibility audit: keyboard navigation, screen reader, contrast, ARIA, forms, cognitive. Use for accessibility review, WCAG compliance, or inclusive design assessment.