verifying

A verification checklist for confirming that code work is really complete, fixed, or passing. It requires running the full command that proves the claim and checking its result.

In plain words
What is it for?
Use it before saying that tests pass, a build succeeds, a bug is fixed, a feature is complete, or changes are ready to commit or submit for review.
Why use it?
It prevents relying on assumptions, old test runs, or partial checks. This makes claims about builds, tests, linting, and bug fixes evidence-based.

Skill for Claude CodeCodex

Part of the agents-atlas plugin — 24 skills shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/avinashp/agentsatlas/verifying
Any agent
npx skills add AvinashP/AgentsAtlas --skill verifying
Clone the repo
git clone --depth 1 https://github.com/AvinashP/AgentsAtlas

Made for: Claude Code, Codex.

Or install agents-atlas, the plugin that ships this one along with the rest of its 24 skills.

Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 783 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00036 $0.00783
Opus 5 $0.00018 $0.00392
Sonnet 5 $0.00007 $0.00157
Haiku 4.5 $0.00004 $0.00078

Measured 3d ago against content hash 55d8d82ccb32, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

verifying 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 3d 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.

skills/verifying/SKILL.md · 134 lines

How it starts

The opening of the file, as written. The whole thing — 134 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Verification Before Completion

Evidence before claims, always.

The Iron Law

NO COMPLETION CLAIMS WITHOUT FRESH VERIFICATION EVIDENCE

If you haven't run the verification command in this message, you cannot claim it passes.

The Gate Function

BEFORE claiming any status:

1. IDENTIFY: What command proves this claim?
2. RUN: Execute the FULL command (fresh, complete)
3. READ: Full output, check exit code
4. VERIFY: Does output confirm the claim?
   - If NO: State actual status with evidence
   - If YES: State claim WITH evidence
5. ONLY THEN: Make the claim

Skip any step = lying, not verifying

What Requires Verification

Claim Requires Not Sufficient
"Tests pass" Test command output: 0 failures Previous run, "should pass"
"Linter clean" Linter output: 0 errors Partial check
"Build succeeds" Build command: exit 0 Linter passing
"Bug fixed" Test original symptom: passes Code changed
"Feature complete" Requirements checklist verified Tests passing

Red Flags - STOP

If you catch yourself:

  • Using "should", "probably", "seems to"
  • About to say "Done!" before verification
  • About to commit/push/PR without running tests
  • Relying on partial verification
  • Thinking "just this once"

STOP. Run the verification command.

Common Rationalizations

Excuse Reality
"Should work now" RUN the verification
"I'm confident" Confidence ≠ evidence
"Just this once" No exceptions
"Linter passed" Linter ≠ tests
"I'm tired" Exhaustion ≠ excuse
"Partial check is enough" Partial proves nothing

Correct Patterns

Tests:

Run test command → See: 34/34 pass → "All tests pass"

NOT: "Should pass now" / "Looks correct"

Build:

Run build → See: exit 0 → "Build passes"

NOT: "Linter passed" (linter doesn't check compilation)

Bug fix:

Reproduce bug → Apply fix → Test → Bug no longer occurs → "Fixed"

NOT: "Changed the code, should be fixed"

Read the full file on GitHub · 134 lines

Changes

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.

  1. 3d ago First seen · 134 lines · 36 tokens per session scan A 55d8d82ccb32

Subscribe to this mod's changes

verifying is a skill published in the GitHub repository AvinashP/AgentsAtlas (7 stars, last pushed 3mo ago), licensed MIT. It adds 36 tokens to every session and 783 once invoked, about $0.0002 per session on Opus 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.

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