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 agentmods add skills/echoomegaprime/echo-qcoder/qcoder-semantic-navigatornpx skills add echoomegaprime/echo-qcoder --skill qcoder-semantic-navigatorgit clone --depth 1 https://github.com/echoomegaprime/echo-qcoderWhat 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 | $0.00073 | $0.00385 |
| Opus 5 | $0.00036 | $0.00192 |
| Sonnet 5 | $0.00015 | $0.00077 |
| Haiku 4.5 | $0.00007 | $0.00038 |
Grade A, and why
qcoder-semantic-navigator 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 yesterday.
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.
What it actually says
QCoder Semantic Navigator
Expected input
Identify the symbol, behavior, pattern, or refactor objective and the active repository. Read the nearest repository instructions before invoking semantic tools.
Required sequence
- Activate or confirm the current project with
qcoder-serenaand load its initial instructions once per session. - Start with
get_symbols_overvieworfind_symbol; request bodies only for the smallest relevant symbols. - Use
find_referencing_symbols, implementations, declarations, and diagnostics to map impact before editing. - Use Serena symbolic edits for exact symbol changes. Use pinned ast-grep from
.runtime/powerpack/npm/node_modules/.bin/ast-grep.cmdwhen the task is a syntax-shaped pattern across many files. - Preview every multi-file structural rewrite. Exclude generated, vendor, dependency, cache, artifact, and unrelated dirty paths.
- Run the repository's focused tests, type checks, and format gate. Inspect the diff and reference graph again after a rename or deletion.
Serena is untrusted by default and exposes only allowlisted semantic tools. Its raw shell, raw file replacement, and private memory tools remain excluded.
Stop conditions
Stop if the active project differs from the scoped workspace, the symbol result is ambiguous, generated code owns the target, a rewrite crosses unrelated dirty files, or verification cannot establish behavior preservation.
Output format
Report symbols inspected, references affected, exact edits, excluded paths, tests, and any unresolved dynamic references.
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.
- yesterday First seen · 30 lines · 73 tokens per session scan A 457ced8c28ff
qcoder-semantic-navigator is a skill published in the GitHub repository echoomegaprime/echo-qcoder (0 stars, last pushed yesterday), licensed MIT. It adds 73 tokens to every session and 385 once invoked, about $0.0004 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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