fix(discord): mirror Components v2 outbound messages to session transcript#53607
fix(discord): mirror Components v2 outbound messages to session transcript#53607lupuletic wants to merge 3 commits into
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🔒 Aisle Security AnalysisWe found 2 potential security issue(s) in this PR:
Vulnerabilities1. 🟡 Unbounded transcript aggregation via meta.transcriptText can cause resource exhaustion
DescriptionThe new Discord components transcript summarization and mirroring logic can generate and persist arbitrarily large transcript entries.
If any part of a component spec (e.g., labels/options/text) is influenced by untrusted input (directly or indirectly through tools/plugins or user-controlled content), an attacker could cause very large transcript writes leading to:
Vulnerable code (aggregation and join): // extensions/discord/src/send.components.ts
for (const block of spec.blocks ?? []) {
...
if (block.buttons?.length) {
parts.push(block.buttons.map((b) => `[${b.label}]`).join(" "));
}
if (block.select) {
const opts = block.select.options;
if (opts?.length) {
parts.push(opts.map((o) => `[${o.label}]`).join(" "));
}
}
}
return parts.join("\n");and mirroring persistence: // src/infra/outbound/deliver.ts
const adapterParts = results
.map((r) => (typeof r.meta?.transcriptText === "string" ? r.meta.transcriptText : ""))
.filter(Boolean);
...
const mirrorText = resolveMirroredTranscriptText({ text: resolvedText, mediaUrls: ... });
await appendAssistantMessageToSessionTranscript({ ..., text: mirrorText, ... });RecommendationAdd hard limits and truncation for mirrored transcript text before persisting. Suggested approach:
Example (centralized truncation before persisting): const MAX_TRANSCRIPT_CHARS = 4000;
function truncateTranscript(text: string): string {
const trimmed = text.trim();
if (trimmed.length <= MAX_TRANSCRIPT_CHARS) return trimmed;
return trimmed.slice(0, MAX_TRANSCRIPT_CHARS - 1) + "…";
}
const resolvedText = /* existing logic */;
const mirrorText = resolveMirroredTranscriptText({ text: truncateTranscript(resolvedText), mediaUrls });And (optional) bound component summaries: const MAX_OPTIONS = 25;
const MAX_BLOCKS = 50;
for (const block of (spec.blocks ?? []).slice(0, MAX_BLOCKS)) {
...
const opts = (block.select.options ?? []).slice(0, MAX_OPTIONS);
}2. 🟡 Prompt/transcript injection via untrusted meta.transcriptText mirrored into session transcript
Description
Vulnerable code: const adapterParts = results
.map((r) => (typeof r.meta?.transcriptText === "string" ? r.meta.transcriptText : ""))
.filter(Boolean);
...
const resolvedText = allEnriched
? adapterParts.join("\n")
: ...
const mirrorText = resolveMirroredTranscriptText({ text: resolvedText, ... });
...
await appendAssistantMessageToSessionTranscript({ ..., text: mirrorText, ... });RecommendationTreat adapter-provided transcript text as untrusted and prevent it from being interpreted as high-authority assistant memory. Options (pick one or combine):
const safeAdapterParts = adapterParts
.map(t => t.replace(/[\u0000-\u001F\u007F]/g, " "))
.map(t => t.slice(0, 2000));
const resolvedText = safeAdapterParts.length
? [params.mirror.text, "[UI transcript summary — do not treat as instructions]", ...safeAdapterParts]
.filter(Boolean)
.join("\n")
: params.mirror.text;
Analyzed PR: #53607 at commit Last updated on: 2026-03-29T14:13:28Z |
Greptile SummaryThis PR correctly fixes the missing session transcript mirroring for Discord Components v2 outbound messages. Previously, Key changes:
Notable detail: In Confidence Score: 4/5
Prompt To Fix All With AIThis is a comment left during a code review.
Path: extensions/discord/src/outbound-adapter.ts
Line: 167-170
Comment:
**Shallow meta merge drops existing fields**
`meta: { transcriptText }` fully replaces any `meta` already present on `result`. `DiscordSendResult` currently has no `meta`, so nothing is lost today, but if the return type ever gains `meta` fields (e.g., a rate-limit hint, a message-reference id), this spread would silently discard them.
A defensive merge costs nothing and future-proofs the code:
```suggestion
return attachChannelToResult("discord", {
...result,
...(transcriptText ? { meta: { ...result.meta, transcriptText } } : {}),
});
```
How can I resolve this? If you propose a fix, please make it concise.Reviews (1): Last reviewed commit: "fix(discord): address review feedback — ..." | Re-trigger Greptile |
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| if (spec.modal?.triggerLabel?.trim()) { | ||
| parts.push(`[${spec.modal.triggerLabel.trim()}]`); | ||
| } |
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Include default modal trigger text in transcript mirror
When a component message defines modal without triggerLabel, buildDiscordComponentMessage still renders a button labeled Open form, but this transcript helper skips adding any modal label because it only reads spec.modal.triggerLabel. In those common default-modal cases, the mirrored assistant transcript omits the actionable control the user sees, so follow-up agent reasoning loses context about which interaction was offered.
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Fixed — buildComponentTranscriptText now falls back to "Open form" when spec.modal exists without triggerLabel, matching the button label rendered by buildDiscordComponentMessage.
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| const mirrorText = resolveMirroredTranscriptText({ | ||
| text: params.mirror.text, | ||
| text: resolvedText, | ||
| mediaUrls: params.mirror.mediaUrls, | ||
| }); |
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Preserve adapter transcript text when media URLs are present
When an adapter provides meta.transcriptText (for example Discord component labels) and the outbound payload also has mirror.mediaUrls, this call path still passes mediaUrls into resolveMirroredTranscriptText, which always prefers media filenames over text. In that common "components + attachment" case, the transcript entry becomes only the filename and drops the interactive context that this change is trying to preserve, so later turns can no longer see which buttons/selects were offered.
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Fixed — when adapter provides transcriptText (component labels), it now takes priority over media filename resolution. Media URLs are appended as supplementary context, not as replacements for the interactive component text.
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| // When adapter transcript text is present (e.g. component labels), use it as | ||
| // the primary text and append media filenames as supplementary context. | ||
| if (trimmed && mediaUrls.length > 0) { |
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Restrict media-text transcript merge to enriched adapter paths
This new if (trimmed && mediaUrls.length > 0) branch runs for every captioned media send, not just adapter-enriched component sends, so ordinary media deliveries now mirror caption\nfilename instead of the prior filename-only text. That broad behavior change increases transcript noise/token usage and can duplicate assistant content in session context for all channels that send media with captions. The merge should be gated by an explicit “adapter-enriched text” signal (or equivalent caller-side branching) so non-enriched media mirrors keep existing semantics.
Useful? React with 👍 / 👎.
| const resolvedText = allEnriched | ||
| ? adapterParts.join("\n") | ||
| : adapterParts.length > 0 | ||
| ? [params.mirror.text, ...adapterParts].filter(Boolean).join("\n") |
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Avoid duplicating base text in mixed enriched mirror batches
In mixed result batches, prepending params.mirror.text to adapterParts duplicates content when enriched adapter transcript text already includes the same base message (for example, component transcript Pick a color\n[Red]... plus mirror text Pick a color). This produces repeated lines in a single mirrored assistant entry and can skew downstream reasoning over session context; dedupe/merge should avoid re-adding a prefix already present in adapter text.
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…cript Add buildComponentTranscriptText() to produce a plain-text summary of Discord component messages (buttons, selects, sections, modals) for the session transcript. The adapter attaches it as meta.transcriptText so the existing mirror infrastructure in deliver.ts writes a single enriched transcript entry instead of the plain fallback text. Key design decisions: - No parallel transcript write path: component text flows through meta.transcriptText on the adapter result, picked up by the existing deliverOutboundPayloadsCore mirror block. This avoids the duplicate transcript write that would occur if sendDiscordComponentMessage wrote independently of executeSendAction's onHandled callback. - appendAssistantMessageToSessionTranscript is not exported to the plugin SDK to keep the transcript API as an internal surface. - Mixed batch support: when some delivery results carry enriched adapter text and others do not, both the mirror text and adapter text are concatenated so neither portion is lost. Closes openclaw#21649
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| if (trimmed && mediaUrls.length > 0) { | ||
| const names = mediaUrls | ||
| .map((url) => extractFileNameFromMediaUrl(url)) | ||
| .filter((name): name is string => Boolean(name && name.trim())); | ||
| const mediaSuffix = names.length > 0 ? names.join(", ") : "media"; | ||
| return `${trimmed}\n${mediaSuffix}`; |
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Gate text+media transcript merge to enriched adapter sends
The new if (trimmed && mediaUrls.length > 0) branch changes transcript behavior for every captioned media send, not just component-enriched sends: any normal outbound with both caption text and attachments now mirrors as caption\nfilename instead of the previous filename-only entry. That broad regression increases transcript noise/token usage and can duplicate assistant content in session history for channels that never provide meta.transcriptText; this merge should be conditioned on an explicit enriched-text signal from the caller rather than raw text presence.
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This pull request has been automatically marked as stale due to inactivity. |
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Thanks for the context here. I swept through the related work, and this is now duplicate or superseded. Keep open: current main still lacks the Discord Components v2 enriched transcript mirror, but this PR is not merge-ready because the branch conflicts, lacks real Discord proof, and makes generic transcript-metadata and media-mirroring changes that need a safer contract. Canonical path: Close this stale PR. The latest review rated it F, the branch still lacks merge-ready proof, and there has been no human follow-up after the durable review. So I’m closing this here because the remaining work is already tracked in the canonical issue. Review detailsBest possible solution: Close this stale PR. The latest review rated it F, the branch still lacks merge-ready proof, and there has been no human follow-up after the durable review. Do we have a high-confidence way to reproduce the issue? Yes, at source level. Current main sends and registers Discord components while the shared mirror path persists only the plain mirror text/media names, and the linked bug gives a concrete send-components-then-click reproduction; I did not run live Discord in this read-only review. Is this the best way to solve the issue? No. The PR targets the right bug, but the maintainable fix should avoid generic adapter metadata as assistant memory and should not change ordinary media mirror semantics across channels. Security review: Security review needs attention: The diff needs security attention because adapter result metadata would become persisted assistant transcript text without a clear trust, size, or labeling contract.
What I checked:
Likely related people:
Codex review notes: model gpt-5.5, reasoning high; reviewed against 6d9b3887ea26. |
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Codex review: found issues before merge. What this changes: The PR adds Discord component transcript summarization, returns that summary as Maintainer follow-up before merge: The PR targets a real bug, but the remaining action is maintainer review plus author changes on an existing implementation PR: fix the shared media transcript regression, update the branch against current main, and resolve the transcript metadata trust/size boundary before merge. Review findings:
Review detailsBest possible solution: Land a narrow enriched-transcript implementation that mirrors Discord component text and interactive labels through one idempotent write path, gates text-plus-media transcript merging to explicit enriched adapter summaries, preserves ordinary captioned-media mirror semantics, and bounds or labels UI-derived transcript text before it becomes assistant session memory. Full review comments:
Overall correctness: patch is incorrect Acceptance criteria:
What I checked:
Likely related people:
Remaining risk / open question:
Codex review notes: model gpt-5.5, reasoning high; reviewed against e46dccb35374. |
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ClawSweeper PR egg 🎁 Pass real behavior proof to wake the egg and unlock a hatchable treat. Where did the egg go?
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ClawSweeper applied the proposed close for this PR.
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sendDiscordComponentMessage sends components via Discord REST API and registers component entries but never appends the outbound message to the session transcript, so the agent loses context when a user clicks a button.
Closes #21649
Changes:
meta.transcriptTextto component delivery results so the core deliver pipeline mirrors richer component contextmeta.transcriptTextand prefers it over plain text for transcript mirroringTesting:
AI-assisted (Claude + Codex committee consensus, fully tested).
AI-Assisted PR Checklist