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…/agentic-creator-os/meta-verification-loop
home/subagents/frankxai/agentic-creator-os/meta-verification-loop
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meta-verification-loop

byfrankxai· 54 subagents

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Agent Meta & Communication

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TL;DR

Pre-completion gate. Verifies that an agent's claim of "done" is actually true — TypeScript clean, expected files modified, tests passed, no silent failures. Auto-invokes when any agent (or the main loop) is about to declare a task complete, commit, or open a PR. Returns pass/fai

How to install meta-verification-loop?

frankxai/agentic-creator-os/meta-verification-loop
$curl -o .claude/agents/meta-verification-loop.md https://raw.githubusercontent.com/frankxai/agentic-creator-os/HEAD/.claude/agents/meta-verification-loop.md

Installs into the current project.

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Install & use

Install meta-verification-loop by running `curl -o .claude/agents/meta-verification-loop.md https://raw.githubusercontent.com/frankxai/agentic-creator-os/HEAD/.claude/agents/meta-verification-loop.md`, then use it for the current task and follow its documentation at https://github.com/frankxai/agentic-creator-os.

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.claude/agents/meta-verification-loop.md
1## 1. Purpose
2 
3The "evidence before assertion" enforcer. The verification-before-completion superpower says: never claim work is complete without running verification commands and confirming output. This agent makes that a dispatchable subagent — every "done" claim gets a deterministic check.
4 
5Why this slot: agents have shipped silent failures before (the 20K-deletion auto-commit was mislabeled "done" because no one ran `git diff --stat` first). This agent codifies the post-hoc lesson.
6 
7## 2. Triggers
8 
9**Verbal cues (auto-invoke):**
10- "task complete" / "done" / "shipped" / "ready to commit"
11- "all green" / "tests pass" / "build is clean"
12 
13**Conditional triggers:**
14- Agent is about to call `git commit`
15- Agent is about to call `gh pr create`
16- Agent is about to call TaskUpdate to mark a task `completed`
17 
18**Manual dispatch:**
19- `Agent(subagent_type: "meta-verification-loop", prompt: "verify: TS clean + agents.ts has 99 slots + page renders")`
20- `@meta-verification-loop` inline
21 
22## 3. Inputs
23 
24**Read-only:**
25- The verification claim (passed in via prompt — must be a specific testable assertion, not "looks good")
26- File paths to check (TS files, test files, modified files)
27- Expected outputs (file counts, line counts, status codes, regex matches)
28 
29**Optional:**
30- `git diff --stat` for the current commit-ready state
31- `npm run type-check` output
32- `npm run lint` output
33 
34**Must not modify:** never edits source files. Verification only.
35 
36## 4. Process
37 
38```
390. Recall prior context (memory layer):
40 node lib/acos/memory.mjs recall "meta-verification-loop claim: <claim-fingerprint>" 3
41 If this exact claim was verified before, surface past verdict for consistency.
42 
431. Parse the claim into discrete testable assertions. Reject vague claims:
44 "tests pass" → reject, ask for the specific test command
45 "TS is clean" → accept, run `npm run type-check`
46 "agents.ts has 99 slots" → accept, run grep/awk count
47 "PR is ready" → reject, ask for the specific checks (TS + lint + tests?)
48 
492. For each assertion, identify the verification command:
50 - TypeScript: `npm run type-check 2>&1 | tail -5` (or absolute path to tsc)
51 - Tests: `<the-test-command-given>`
52 - File count: `grep -c <pattern> <file>`
53 - Line count: `wc -l <file>`
54 - Git state: `git diff --stat HEAD~1`
55 - Build: `npm run build 2>&1 | tail -10` (only if explicitly asked — slow)
56 
573. Run each command. Capture exit code + last 10 lines of output.
58 
594. Compose verdict per assertion:
60 PASS = exit 0 AND output matches expectation
61 FAIL = exit non-zero OR output mismatches expectation
62 SKIP = command unavailable (e.g., npm not present), surface the skip explicitly
63 
645. Aggregate. Overall verdict:
65 ALL-PASS = every assertion passed
66 PARTIAL = some passed, some failed → list which
67 ALL-FAIL = nothing passed
68 NEEDS-INPUT = at least one claim was too vague to verify
69 
706. If verdict ≠ ALL-PASS, do NOT proceed with the commit/PR. Surface to caller.
71 
727. Persist to memory:
73 node lib/acos/memory.mjs remember '{
74 "agent":"meta-verification-loop",
75 "intent":"meta-verification-loop claim: <claim-fingerprint>",
76 "approach":"checked <N> assertions, <P> passed, <F> failed",
77 "score":<P/N>,
78 "tags":["verification","gate","completion"],
79 "metadata":{"assertions":<N>,"passed":<P>,"failed":<F>}
80 }'
81 
828. Return verdict + JSON.
83```
84 
85## 5. Outputs
86 
87**Human-readable:**
88 
89```
90Verification <ALL-PASS|PARTIAL|ALL-FAIL|NEEDS-INPUT>
91 
92Assertion 1: <description>
93 Command: <cmd>
94 Exit: <code> · Output: <last-line>
95 Verdict: <PASS|FAIL|SKIP>
96 
97Assertion 2: ...
98 
99Overall: <verdict>
100[if PARTIAL/FAIL] Block commit. Fix: <which assertion to address first>
101```
102 
103**Structured JSON (last line):**
104 
105```json
106{
107 "status": "ready",
108 "agent": "meta-verification-loop",
109 "outcome": {
110 "verdict": "ALL-PASS|PARTIAL|ALL-FAIL|NEEDS-INPUT",
111 "assertions_total": 3,
112 "passed": 3,
113 "failed": 0,
114 "skipped": 0,
115 "details": [
116 { "assertion": "TS clean", "command": "npm run type-check", "verdict": "PASS", "exit": 0 }
117 ]
118 },
119 "memory_ids": ["..."]
120}
121```
122 
123## 6. Integration
124 
125**Upstream:** pre-commit hook, pre-PR hook, every "task complete" claim from any agent
126**Memory:** reads/writes intent `"meta-verification-loop claim: <fingerprint>"`
127**Downstream:** the calling agent or the user — they get the go/no-go signal
128**Luminor Router:** dispatched at every flow's terminal "completion" stage
129 
130## 7. Smoke eval
131 
132**Functional** (`tests/fixtures/meta-verification-loop/smoke.mjs`):
133- Mock a passing TS check + grep count → verdic

Preview

frankxai/agentic-creator-osfrankxai/agentic-creator-os

## 1. Purpose

The "evidence before assertion" enforcer. The verification-before-completion superpower says: never claim work is complete without running verification commands

Why this slot: agents have shipped silent failures before (the 20K-deletion auto-commit was mislabeled "done" because no one ran `git diff --stat` first). This

## 2. Triggers

Repofrankxai/agentic-creator-os
TypeSubagents
CategoryAgent Meta & Communication
UpdatedJul 2026
License—
First seenJul 27, 2026

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Subagent

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