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 robotaitai/project-bedrock --skill history-backfillgit clone --depth 1 https://github.com/robotaitai/project-bedrockWrote 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/robotaitai/project-bedrock/history-backfill)<a href="https://agentmods.dev/skills/robotaitai/project-bedrock/history-backfill"><img src="https://agentmods.dev/badge/skills/robotaitai/project-bedrock/history-backfill/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/robotaitai/project-bedrock/history-backfill"><img src="https://agentmods.dev/badge/skills/robotaitai/project-bedrock/history-backfill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00046 | $0.01072 |
| Opus 5.5 | $0.00018 | $0.00429 |
| Sonnet 5.5 | $0.00009 | $0.00214 |
| Haiku 4.5 | $0.00005 | $0.00107 |
Grade A, and why
history-backfill 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 — 116 lines — stays where its author put it; the contents beside it link to each section on GitHub.
History Backfill
Reads raw evidence from the repo and existing artifacts, then distills stable facts into the curated memory tree.
Use this after project-ontology-bootstrap when the project has existing history.
Separation rule -- enforced, never relaxed
| Location | What goes here | Who edits it |
|---|---|---|
agent-knowledge/Evidence/raw/ |
Direct snapshots from the current repo state | Only the import script |
agent-knowledge/Evidence/imports/ |
Imported docs, tasks, sessions, traces, graph exports | Only the import script |
agent-knowledge/Outputs/ |
Generated discovery summaries and structural maps | Only scripts or agents treating them as non-canonical outputs |
agent-knowledge/Memory/ |
Curated, stable, distilled facts | Only the agent, via writeback rule |
Never write raw evidence into memory. Never treat evidence as authoritative -- it is input for judgment, not truth.
Step 1 -- Collect evidence
Run the import script:
scripts/import-agent-history.sh /path/to/project
This creates evidence files under Evidence/raw/ and Evidence/imports/, and
generated summaries under Outputs/.
Step 2 -- Read evidence in priority order
Read these files in order. Each source has different signal quality:
imports/existing-docs.txt-- highest signal. README, CLAUDE.md, AGENTS.md, and project metadata contain curated intent.raw/manifests.txt-- authoritative for stack and dependency boundaries.raw/config-files.txt-- strongest signal for conventions and tooling.raw/tests.txtandraw/ci-workflows.txt-- how the project proves and ships behavior.raw/structure.txt-- actual architecture shape.imports/tasks.txtandimports/session-files.txt-- recurring work areas and unresolved questions.raw/git-log-detail.txtandraw/git-log.txt-- what changed and why.imports/trace-index.txt-- supplemental traces only; never canonical truth.
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 · 116 lines · 46 tokens per session scan A b36ccab5329e
history-backfill is a skill published in the GitHub repository robotaitai/project-bedrock (45 stars, last pushed 2mo ago), licensed MIT. It adds 46 tokens to every session and 1,072 once invoked, about $0.0002 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 2026-08-30.
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