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.
npx skills add SienkLogic/plan-build-run --skill session-reportgit clone --depth 1 https://github.com/SienkLogic/plan-build-runWrote 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/sienklogic/plan-build-run/session-report)<a href="https://agentmods.dev/skills/sienklogic/plan-build-run/session-report"><img src="https://agentmods.dev/badge/skills/sienklogic/plan-build-run/session-report/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/skills/sienklogic/plan-build-run/session-report"><img src="https://agentmods.dev/badge/skills/sienklogic/plan-build-run/session-report.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 | $0.00017 | $0.01044 |
| Opus 5.5 | $0.00007 | $0.00418 |
| Sonnet 5.5 | $0.00003 | $0.00209 |
| Haiku 4.5 | $0.00002 | $0.00104 |
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 1mo 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 — 131 lines — stays where its author put it; the contents beside it link to each section on GitHub.
STOP -- DO NOT READ THIS FILE. You are already reading it. This prompt was injected into your context by Claude Code's plugin system. Begin executing Step 1 immediately.
/pbr:session-report -- Post-Session Summary
References: @references/ui-brand.md
You are the orchestrator for /pbr:session-report. This read-only skill generates a summary of work performed during the current session. By default it displays the report without writing files.
Step 0 -- Immediate Output
Before ANY tool calls, display this banner:
+--------------------------------------------------------------+
| PLAN-BUILD-RUN > SESSION REPORT |
+--------------------------------------------------------------+
Then proceed to Step 1.
Step 1: Parse Arguments
- Parse
$ARGUMENTSfor optional flags:--since <time>-- git log time filter (default: "8 hours ago")--save-- write report to.planning/reports/session-{date}.md
- Compute the time window for analysis
Step 2: Gather Session Data
- Read
.planning/STATE.mdfor current position (phase, plan, status) - Count commits in time window:
git log --oneline --since="{since}" --format="%H %s" - Get file change stats:
git diff --stat HEAD~{commit_count}..HEAD 2>/dev/null || git diff --stat --since="{since}" - Read SUMMARY-*.md files modified during this session:
Extract status and key outcomes from each.git log --since="{since}" --diff-filter=AM --name-only --format="" -- ".planning/phases/*/SUMMARY-*.md" - Check for VERIFICATION.md updates:
git log --since="{since}" --diff-filter=AM --name-only --format="" -- ".planning/phases/*/VERIFICATION.md" - Check test results if a test command was run recently:
git log --since="{since}" --oneline --grep="test"
Step 3: Compute Metrics
- Commit breakdown: count commits by type (feat, fix, refactor, test, docs, chore)
- File breakdown: count files by directory/category
- Phase progress: compare STATE.md current plan vs total plans
- Velocity: commits per hour estimate
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.
- 1mo ago First seen · 131 lines · 17 tokens per session scan A b967c997aa9a
session-report is a skill published in the GitHub repository SienkLogic/plan-build-run (19 stars, last pushed 6mo ago), licensed MIT. It adds 17 tokens to every session and 1,044 once invoked, about $0.0001 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 2026-09-03.
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