Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add anhnguyen0905/codex-mcp/plugin install codex-flowWrote 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/skills/anhnguyen0905/codex-mcp/session-report)<a href="https://agentmods.dev/skills/anhnguyen0905/codex-mcp/session-report"><img src="https://agentmods.dev/badge/skills/anhnguyen0905/codex-mcp/session-report.svg" alt="Measured on agentmods" 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 | $0.00031 | $0.01304 |
| Opus 5 | $0.00015 | $0.00652 |
| Sonnet 5 | $0.00006 | $0.00261 |
| Haiku 4.5 | $0.00003 | $0.00130 |
Grade A, and why
session-report 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 4d 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 — 98 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Session Reports
Start the report bundle
At Phase 0, create .codex-flow/reports/<YYYYMMDD-HHMMSS>/.
Derive <YYYYMMDD-HHMMSS> from the session start in local time and keep it unchanged for the whole flow.
Start every report file with exactly this block:
# <Report title>
- Session: <YYYYMMDD-HHMMSS>
- Generated: <ISO 8601>
- PIC: claude | codex | both (claude: <part>, codex: <part>)
Write reports at their gates
- Write
planning.mdafter Phase 2 plan approval. Capture interview outcomes, architecture decisions, and research findings. Set PIC toclaude. - Write
allocation.mdafter Phase 3 backlog approval. Include a task → PIC table with execution PIC and review PIC, execution mode, and checkpoint choice. Set PIC toclaude. - Append to
tasks.mdafter each task passes review or when a task is dropped or abandoned. At the moment of that decision, record it withResult: dropped. Add one section per task and never replace earlier task sections. - Append to
reviews.mdimmediately after each task's dual review resolves, at the same moment as thetasks.mdappend, and add a final-review section after the whole-feature dual review resolves. Set PIC toboth (claude: conformance/quality/security findings + verification verdicts, codex: codex_review findings). - Write
cost.mdat the end of the flow. Include measured Codex data and qualitative Claude data. - Write
SUMMARY.mdat the end of the flow. Include the delivered outcome, a PIC overview table covering every task and phase, and links toplanning.md,allocation.md,tasks.md,reviews.md, andcost.md.
Use this section template in tasks.md:
## T<n>: <title>
PIC: claude | codex | both (claude: <part>, codex: <part>)
Files: <files>
What was done: <summary>
Review PIC: both (claude: conformance/quality/security review + verification runs, codex: codex_review pass)
Review rounds: <n> (claude findings: <n>, codex findings: <n>)
Result: passed | passed-with-hand-fix | dropped
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.
- 4d ago Changed · +9 lines 81e8b443f677
- 8d ago First seen · 89 lines · 31 tokens per session scan A b0f9aa011385
session-report is a skill published in the GitHub repository anhnguyen0905/codex-mcp (3 stars, last pushed 6d ago), licensed MIT. It adds 31 tokens to every session and 1,304 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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